Raspberry Pi 4 works in an aarch64 (ARMv8) CPU architecture.
There are not many distributions running the latest versions of Haskell compiler and tools for this arch.
Tried the following base images with apt-get install cabal-install haskell-stack or similar
CONTAINER ID IMAGE SIZE GHC Stack
072d05463f52 balenalib/aarch64-debian:bullseye 1.57GB (virtual 1.7GB) 8.8.4 2.3.3
9f5b9a933dde navikey/raspbian-bullseye 1.77GB (virtual 2GB) 8.8.4 2.3.3
ab86dbfeebde balenalib/aarch64-ubuntu:focal 1.37GB (virtual 1.49GB) 8.6.5 1.9.3.1
067daa0bd015 navikey/raspbian-buster 1.39GB (virtual 1.59GB) 8.4.4 1.7.1
And chose balenalib/aarch64-debian:bullseye
Balenalib is a popular repository for IoT images
The stack resolver for GHC 8.8.4 is LTS Haskell 16.31 published on 2021-01-17
This tool doesn't support ARM binaries, so it is configured in the image to always use the system GHC.
Start a container
$ docker run -it pinei/haskell-pi
Create a project with stack
~# stack --resolver lts-16.31 new haskell-for-good
Downloading template "new-template" to create project "haskell-for-good" in haskell-for-good/ ...
I think you can ignore --resolver because stack will not try to get another GHC.
Test the project
~# cd haskell-for-good/
~/haskell-for-good# stack test
...
haskell-for-good> Test suite haskell-for-good-test passed
Completed 2 action(s).